Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in /home/bigbrainscrm/app.quicksale.in/exports/WhatsappNotification-install-button-fix/app/Http/Controllers/Install/ModulesController.php:15 Stack trace: #0 {main} thrown in /home/bigbrainscrm/app.quicksale.in/exports/WhatsappNotification-install-button-fix/app/Http/Controllers/Install/ModulesController.php on line 15